CESTODE AND NEMATODE PARASITES. 95 



Fig. 66. Head of the same, x about 50, drawn from life. c, collar, w.v., excretory canals. 



67. Longitudinal median section through the bead of Tiarabothrinm javanicum. a., areola of 



bothridium. c, collar contracted. 



68. Transverse section through the collar region of the same, c, collar. />., neck. 

 69. Tetrarhynchus rhyndwbatidis. x 4-. 



70. The head of the same, x about 18. 



71. End of a proboscis of the same. < about 100, showing the curiously reverse 1 teeth. 



PLATE V. 



Fig. 72. Phyllobothrium blakei. x 20 



73. The head of the same, x about 50. 



74. Rhmebothriwm ceylonicwm, x 2. drawn from the contracted preserved specimen. 



75. Head of the same, x about 5, drawn from the living specimen. 



76. TylocepIuUum kuMi. x 20. 



77. The head of the same, x 60. 



78. Anthemobothrium pulchrum. x 8. a., proglottis from middle ; I'., from end of body. 



79. Head of the same, x 40. 



80. Prosthecobothrium trygonis. xl-5. 



81. Head of the same, x 36. 



Figs. 82a and b. Hooks from the head of Prosthecobothrium trygonis, highly magnified. 



Fig. 83. Tetrarhynchus leucomelanus. x 2. 



83a. Proglottis from middle of the body, showing longitudinal striations. 



84. Head of the same, x about 30, with tip of proboscis highly magnified. 



,, 85. Tylocephalum uarnak. x 10. 



86. Head of the same, x 40. 



87. Tetrarhynchus macroporus. x 10. a., posterior segment, x about 30 ; 6., portion of the proboscis 

 highly magnified. 



,, 88. Thysanobothrium uarnakense. x 2. 



89. Head of the same, x about 20. 



90. Posterior new of head of the same, x about 20. 



91. Another view of head of the same, x about 20. 



92. Anthobothrium rugosum. x 7. 



93. Echeneibothrium minimum, highly magnified, with the bothridia expanded. 



94. The same, less highly magnified, with the bothridia contracted. 



PL ATF. VI. 



Fig. 95. Echeneibothrium simplex, x 6. 



96 Head of the same, from a spirit specimen, x 35. 



97. The same, from life, x 35. 



98. Echeneibothrium triftdum, magnified. 



99. Head of the same, more highly magnified. 



100. Echeneibothrium trygonis. x 20. 



101. Echeneibothrium imlga. x 26. 



102. Anterior end of Echenei ceylonicum, magnified. 



103. Head of the same, more highly magnified. 



